package com.sky.service.impl;

import cn.hutool.core.bean.BeanUtil;
import com.github.pagehelper.Page;
import com.github.pagehelper.PageHelper;
import com.sky.constant.MessageConstant;
import com.sky.constant.PasswordConstant;
import com.sky.constant.StatusConstant;
import com.sky.dto.EmployeeDTO;
import com.sky.dto.EmployeeLoginDTO;
import com.sky.dto.EmployeePageQueryDTO;
import com.sky.entity.Employee;
import com.sky.exception.AccountLockedException;
import com.sky.exception.AccountNotFoundException;
import com.sky.exception.PasswordErrorException;
import com.sky.mapper.EmployeeMapper;
import com.sky.result.PageResult;
import com.sky.service.EmployeeService;
import com.sky.vo.EmployeeVo;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.util.DigestUtils;

import java.util.List;

@Service
public class EmployeeServiceImpl implements EmployeeService {

    @Autowired
    private EmployeeMapper employeeMapper;

    /**
     * 员工登录
     *
     * @param employeeLoginDTO
     * @return
     */
    public Employee login(EmployeeLoginDTO employeeLoginDTO) {
        String username = employeeLoginDTO.getUsername();
        String password = employeeLoginDTO.getPassword();

        //1、根据用户名查询数据库中的数据
        Employee employee = employeeMapper.getByUsername(username);

        //2、处理各种异常情况（用户名不存在、密码不对、账号被锁定）
        if (employee == null) {
            //账号不存在
            throw new AccountNotFoundException(MessageConstant.ACCOUNT_NOT_FOUND);
        }

        //密码比对
        // TODO 后期需要进行md5加密，然后再进行比对
        if (!password.equals(employee.getPassword())) {
            //密码错误
            throw new PasswordErrorException(MessageConstant.PASSWORD_ERROR);
        }

        if (employee.getStatus() == StatusConstant.DISABLE) {
            //账号被锁定
            throw new AccountLockedException(MessageConstant.ACCOUNT_LOCKED);
        }

        //3、返回实体对象
        return employee;
    }

    @Override
    public PageResult getByPage(EmployeePageQueryDTO dto) {

        PageHelper.startPage(dto.getPage(), dto.getPageSize());
        Employee bean = BeanUtil.toBean(dto, Employee.class);
        List<Employee> employeeList = employeeMapper.getByPage(bean);
        Page<Employee> page = (Page<Employee>) employeeList;

        return new PageResult(page.getTotal(), page.getResult());
    }

    @Override
    public void add(EmployeeDTO employeeDTO) {
        Employee bean = BeanUtil.toBean(employeeDTO, Employee.class);
        bean.setStatus(StatusConstant.ENABLE);
        bean.setPassword(DigestUtils.md5DigestAsHex(PasswordConstant.DEFAULT_PASSWORD.getBytes()));

//        bean.setCreateTime(LocalDateTime.now());
//        bean.setUpdateTime(LocalDateTime.now());
//
//        bean.setCreateUser(BaseContext.getCurrentId());
//        bean.setUpdateUser(BaseContext.getCurrentId());
        employeeMapper.insert(bean);
    }

    @Override
    public EmployeeVo getById(Long id) {
        Employee employee = employeeMapper.selectById(id);
        EmployeeVo bean = BeanUtil.toBean(employee, EmployeeVo.class);
        return bean;
    }

    @Override
    public void update(EmployeeDTO employeeDTO) {
        Employee bean = BeanUtil.toBean(employeeDTO, Employee.class);
//        bean.setUpdateUser(BaseContext.getCurrentId());
//        bean.setUpdateTime(LocalDateTime.now());
        employeeMapper.update(bean);
    }

    @Override
    public void updateStatus(Long id, Integer status) {
        employeeMapper.updateStatus(id, status);
    }

}
